| 摘要 |
A micro-needle roller is provided to make the dissembling and the assembling of a roller portion and a handle portion easier and to make the maintenance and the repairing of the roller portion easy. A micro-needle roller includes a roller portion(110), a central shaft(114) and a handle portion(120). Plural micro-needles(115) protrude on the outer circumference of the roller portion. The central shaft penetrates the center of the roller portion. A fixing portion(125) of a U-shape is formed on the handle portion. The fixing portion supports both end portions of the central shaft. Penetrating holes(121) through which the central shaft penetrate are formed on both ends of the fixing portion. One end portion of the penetrating hole is open. The fixing portion and the handle portion are coupled through screw coupling. |
